About this replacement
DJI Osmo 360 / Osmo Action 5 — 3.87V Li-ion Replacement Battery (BCX204-1950-3.87)
This is a 3.87V, 1950mAh (7.55Wh) Li-ion cell for the DJI Osmo 360, Osmo 360 8K, and Osmo Action 5 cameras. It matches OEM part numbers BCX204-1950-3.87, CP.OS.00000370.01, and CP.OS.00000441.01. The physical dimensions are 44.25 × 34.30 × 12.00mm — confirm these against your original cell before fitting.
- Osmo 360, 360 8K, and Action 5 compatibility: All three models share the same battery bay geometry, voltage rail, and BMS communication protocol. One cell format covers all three without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Osmo Action 5 body. The BMS handshake completed on first insertion, and the camera reported battery percentage without cycling the power.
- First-use charge cycle on the Osmo 360: Insert the new cell and charge it to 100% through the camera body or OEM charger before your first shoot. Some DJI BMS firmware versions require one full in-body charge cycle before the battery-remaining indicator maps correctly to the new cell's discharge curve.
Battery percentage jumping erratically on the Osmo 360 display
This happens when the camera's BMS is still mapping its voltage thresholds against the old cell's discharge curve. A fresh Li-ion cell has a slightly different voltage-to-capacity slope than a worn original. The camera reads voltage correctly but translates it to an incorrect percentage until it learns the new curve. Run two full charge-to-discharge cycles through the camera body, and the indicator will stabilise.
Osmo 360 showing a dead battery icon with a partial charge in the cell
The Osmo 360's BMS uses a low-voltage cutoff threshold — if the cell rests below roughly 3.0V per cell after storage, the camera refuses to boot and shows the dead battery icon even though the cell is not fully discharged. This is a protection state, not a failed cell. Connect the battery to the OEM charger for 10–15 minutes before reinserting it into the camera body. Once voltage recovers above the BMS acceptance threshold, the camera will power on normally.